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When ISO 8859-1 was created, it included the "μ" symbol for micro at codepoint 0xB5; later, the whole of ISO 8859-1 was incorporated into the initial version of Unicode. Many fonts that support both characters (micro sign and lowercase mu) render them identically, but because the micro sign and the Greek lower-case letter have different applications (normally, a Greek letter would be used with other Greek letters, but the micro sign is never used like that), some fonts render them differently, e.g. Linux Libertine and Segoe UI.[citation needed]